Oops sorry for the slow reply, have been distracted by a different project (too many kickstarters all arrived at once) I'm using a double action gravity feed airbrush. Not sure on brand it was a $20 one that they bundle with compressors, so nothing too fancy but I like how easy it is to clean and generally it gets the job done well enough. I also have a much more expensive airbrush I bought years ago which is more an artists brush which does very fine spray but it's a bit limited when using paint instead of ink.

Similar to the way I painted Roxxor and the troll I painted black around the sprayed areas being the orange glow and the purple crystals after doing a purple wash over the crystals then picking them out with white mixed into purple to edge and highlight facets of the crystals

I airbrushed in all the skin on all the human heroes in one batch with a mix of Tamiya flesh and a bit of Elf Flesh, then lightened with white mixed in. After that I started drawing in eyes and started bouncing from mini to mini doing a bit of one as another section on another was drying.

!SODA! she has big eyes. I went back in with white and painted her pupils a bit smaller.

Big impressive wolf and fiddly rider. Pretty happy with the result, I painted her hair like she has a wolf pelt attached to the back of her mask like in Princess Mononoke. I highly recommend detaching her from the wolf to paint her and the wolf separately.

My phone is flattening a bit of the shading unfortunately. Mind you going fairly low contrast has been a goal on these compared to normal minis since I'm using Nendoroids as a reference where the shading is very subtle. I'll take some photos of the vending machine for you.

More WIPs and two more done. The Druid and Captain R both of which have been part done for several years. Wooo finished.

If your airbrush is clogging too easily than your paint mixture is too thick. Try mixing a batch in a bottle, shake the closed bottle and when all the contents are thoroughly mixed, take a clean Popsicle stick and stir it in there. pull the stick out, if you get 2-3 nice drips off the end before holding to the stick, it should run fine through an airbrush.

more than likely in a thick mix, you will get only one drip (maybe another), in a thin mix, you'll get 4+.